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