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