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)(17,18)(19,24)(20,25)(21,30)(22,26)(23,27)(28,31)(29,32)(9,11)(10,13)(12,16)(14,15)(17,19,23,28)(18,24,27,31)(20,29,21,22)(25,32,30,26)(2,5)(6,8)(10,14)(11,16)(17,20,22,19,23,21,29,28)(18,25,26,24,27,30,32,31)(10,14)(13,15) involution — undirected(1,3,4,7)(2,6,5,8)(17,21,22,28,23,20,29,19)(18,25,26,24,27,30,32,31)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.