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