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