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