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