Nayler was a member of the New Zealand U-20 side at the 2010 and 2012 Women's World Championships, playing in all three of New Zealand's group games at both events.[13][14] The performances earned her a spot at the senior New Zealand team, the "Football Ferns", for the 2011 FIFA Women's World Cup.[15] Nayler was the only uncapped member of New Zealand's squad and did not feature in the tournament.[16] She was also a standby player for the 2012 Olympics.[17]
She played all three matches of New Zealand at the 2015 FIFA Women's World Cup in Canada.[19] Nayler was chosen as Player of the Match during her second game, as she kept a clean sheet in a 0–0 tie with the hosts in Edmonton.[20]
In 2015, Nayler was captain of Northern Football as they won the National Women's League, the top-flight women's football tournament of New Zealand.[21] She also played for Norwest United of the Northern League.[16] In 2016, Northern Football manager Paul Greig had become assistant coach of Sky Blue FC, in the United States' National Women's Soccer League, and led his new team to sign Nayler.[22] However, she was released by Sky Blue after 26 days and no games played, and Sky Blue signed another outfielder instead.[23][24]
Nayler then hoped to use the 2016 Olympics, where she was again the Ferns' starting goalie, to see if she attracted the attention of any foreign clubs.[25] In the Olympics, Nayler had a clean sheet in New Zealand's second game, a defeat of Colombia by 1–0, but the Ferns fell in the group stage following defeats to the United States and France.[26]
Shortly after the Games, Nayler signed a two-year contract with Olympique Lyonnais of France.[27] In 2017 she was loaned to women's team of Grenoble Foot 38, who played the Division 2, after seeing no playing time as the third goalkeeper.[28][29] For the 2017–18 season, Nayler signed with the female squad of FC Girondins de Bordeaux, who played in the Division 1.[30] At the end of her first season, where Bordeaux finished seventh, Nayler renewed her contract for an additional two years.[31]
In August 2020, Nayler announced she had signed for FA Women's Super League club Reading. Unable to dislodge the incumbent goalkeeper Grace Moloney and unhappy at a lack of playing opportunities, Nayler left after one season.[33]
On 27 October 2021, Damallsvenskan club Umeå IK announced the signing of Nayler ahead of their 2022 season, where she played during 2022.[34]
On 1 December 2022, Damallsvenskan club IFK Norrköping announced the signing of Nayler ahead of their 2023 season.[35]