No. Regardless of popular assumptions, there is absolutely no established connection between homosexuality and crossdressing. While some crossdressers are gay, the majority like dressing as women for very different reasons than wanting to “catch a man”.
To be fair, in some homosexual relationships the roles are divided along stereotypical gender boundaries and clothing choices may enhance or underscore that – but your clothing preferences do not make you gay, nor do they indicate your sexual preference.
Turn it around: putting a gay man in a suit will not make him prefer women any more than putting a straight man in a dress will make him want men. Similarly, you can’t assume a man is straight just because he’s wearing a suit!