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