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