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