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)(17,18,23,28)(19,29,30,25)(20,24,31,32)(21,27,22,26)(2,6)(7,8)(9,10)(11,14)(12,13)(15,16)(19,20)(21,22)(24,29)(25,32)(26,27)(30,31) involution — undirected(1,3,5,4)(2,7,6,8)(10,13)(14,15)(17,19,21,20,23,30,22,31)(18,24,26,29,28,32,27,25)(1,3,5,4)(2,7,6,8)(9,11,12,16)(10,14,13,15)(17,20,21,30,23,31,22,19)(18,25,26,24,28,29,27,32)(1,4,5,3)(2,7,6,8)(19,30)(20,31)(24,32)(25,29)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.