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