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