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