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