Arrival by public transportation is recommended. Zurich Main Station is the largest railway station in Switzerland and is a hub for all national trains and neighbouring European countries. Most international trains such as Cisalpino, TGV, ICE, EuroCity, CityNightLine arrive in Zurich Main Station. Trains run directly between Zurich Main Station and Zurich Airport.

Map of Zurich Main Station at  map.search.ch

Map of Zurich Main Station

Usefull links:
Zurich Main Station (Wikipedia)
Swiss Federal Railways (SBB)
Zürcher Verkehrsverbund (ZVV)
Zürich Tourismus