One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(3,10)(4,7)(9,14)(11,12)(13,15)(17,18,21,25,22,20,24,29)(19,23,27,30,26,28,31,32)(1,2,7,14,5,9,4,6)(3,8,10,15,12,16,11,13)(17,19)(18,23)(20,28)(21,27)(22,26)(24,31)(25,30)(29,32)(1,3)(2,8)(4,11)(5,12)(6,13)(7,10)(9,16)(14,15)(19,26)(23,28)(27,31)(30,32) involution — undirected(17,20,21,29,22,18,24,25)(19,23,27,30,26,28,31,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.