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