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