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