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