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