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