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