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