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