Kayalar is a graduate of the Graphics Department of Bilkent University in Ankara. She later worked as an assistant in the Department of Cinema and Television at Istanbul Bilgi University. In 2003, Kayalar produced the series Alacakaranlik with Ugur Yücel and in 2004, she co-produced the film Toss-Up. In 2013, she was a regular in the series 20 Dakika, and the following year, she had a recurring role in the teen drama Medcezir. The same year, she married Ali Bilgin, the show's director. In 2015, she appeared in the Bilgin-directed film Delibal. In 2020, Kayalar gained prominence with the role of the psychiatrist Peri in the Netflix series Ethos.