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