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