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