One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,7,8,5)(9,10,12,14)(11,13,15,16)(17,18)(19,25)(20,23)(21,26)(22,24)(27,32)(28,30)(29,31)(3,8)(5,7)(9,10)(11,13)(12,14)(15,16)(17,19,22,20)(18,23,24,25)(21,27,29,28)(26,30,31,32)(1,3)(2,5)(4,8)(6,7)(18,24)(23,25)(26,31)(30,32) involution — undirected(1,2)(3,5)(4,6)(7,8)(9,11,12,15)(10,13,14,16)(17,20,22,19)(18,25,24,23)(21,27,29,28)(26,30,31,32)(17,21,22,29)(18,26,24,31)(19,27,20,28)(23,30,25,32)(17,18)(19,23)(20,25)(21,26)(22,24)(27,30)(28,32)(29,31) 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.