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