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