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