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