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