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