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