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