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