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