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