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)(17,18,21,26,22,25,20,24)(19,23,27,30,28,31,29,32)(1,2,7,14,5,9,4,6)(3,8,10,15,12,16,11,13)(17,19,20,27,22,28,21,29)(18,23,26,32,25,31,24,30)(1,3)(2,8)(4,11)(5,12)(6,13)(7,10)(9,16)(14,15)(17,20,22,21)(18,24,25,26)(19,27,28,29)(23,30,31,32)(18,25)(23,31)(24,26)(30,32) involution — undirectedA 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.