Pfäffikon is a town so the best options are by foot or bicycle. There are bus lines (http://www.freienbach.ch/...) but it's not really necessary if you don't live here. Pfäffikon is part of the regional public traffic system ZVV so a valid ZVV ticket or SBB ticket in case of intra-swiss travel is sufficient. Orientation is easy as Churerstrasse is the main divider of the town. It starts in the industrial area close to the Autobahn and followed by the Seedamm Center next to Autobahn entry/exit of Pfäffikon. The train station is direct in the center and when you follow the lakeshore to west you fast end in the neighbouring town of Freienbach.
