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