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