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