The 25-year-old has impressed since joining Swansea on a season-long loan from Villarreal, and he was again on form as he netted a superb second-half double in the 3-1 win over the Potters.
"If there is an opportunity I would really love to stay," he said. "I am very happy here. It's a great group, not just the players but the guys around the place, the staff and the fans. It's a family club and I really like that. There is something good happening here and I like being part of it."
De Guzman's form has started to attract the attentions of the Dutch national coach Louis van Gaal, and his assistant Danny Blind was at the Liberty Stadium on Saturday.
De Guzman has been previously capped at under-21 level and would like the chance to make his bow for the senior side.
He said: "Yes, I was aware he (Blind) was there - that's why I scored the two goals!
"They are keeping an eye on a couple of the Dutch players here and I think I had a decent game. I am very happy with how it went, so we'll see."