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