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