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