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