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