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