Head to the major food source, and look for some big buck tracks. Find the trail(s) they are using, and follow it until you get to some thick nasty bedding cover. Make sure the wind is right and set up.

Chances are the big boys are a bit skiddish with the gun seasons just wrapping up, and won't be to willing to show themselves during daylight By setting up tight to some cover, you may be able to catch him getting out of his bed for a late night snack.