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