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