Less than 200 km from Zurich you find Zuoz, 18 km north east of St. Moritz.
Many roads lead to Zuoz, whether by public transportation or by car.
Buy your ticket at the Federal Swiss Railway: https://www.sbb.ch/en/home.html
Thanks to the region's well-maintained Alpine pass roads, Zuoz can be easily accessed by bus or car from within Switzerland as well as from Germany, Italy and Austria. It takes around three hours to drive from Zurich or Milan and four hours from Munich.