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