The links posted by Nick above are what you need.
For what it's worth I met the women's team, FC Staad, who are in the canton of St Gallen and everyone was really friendly, the coach spoke English but training was in German, three times a week.
They're in the top ten womens teams in Switzerland though, but I don't know if you can just go for the training or whether you have to be of a certain standard to go to practice. If I were you, I would email a club near you through the links on their websites and ask them politely if they could tell you how you can get involved.
All of the women play in their spare time and don't get paid for their efforts, so they all seemed very committed!