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