Cut the tree down. Cut open the portion of the tree with the colony in it. Either use a chainsaw or wedges to split the tree.
Use a knife to cut out combs, and rubberband/tie those combs into wooden frames. Put those frames in a hive body.
Once you get the queen into the hive body, the bees will follow her. I usually try to wait until nightfall for all the bees to get into the hive body before I move the hive.