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