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