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