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