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