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