You should wear what makes you comfortable! Want to show off your new bolo tie and a cowboy hat? Go for it! Want to aim for the more business casual fare? We like that too!
If we had any advice to pass on, we would recommend that you include some comfy shoes in your suitcase. Networking means spending a lot of time on your feet, so why not some footwear that is easy to walk in while you count those steps!