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