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