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