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