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