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