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