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)(19,29)(21,22)(26,30)(27,28)(31,32)(1,3,5,4)(2,6,8,7)(9,11)(10,13)(12,15)(14,16)(17,18,22,27,23,28,21,24)(19,25,29,31,30,20,26,32)(1,3,5,4)(2,7,8,6)(11,15)(13,16)(17,19,21,26,23,30,22,29)(18,25,24,32,28,20,27,31)(1,4,5,3)(2,6,8,7)(10,14)(13,16)(17,20)(18,26)(19,27)(21,31)(22,32)(23,25)(24,30)(28,29)(19,30)(20,25)(26,29)(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.