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