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