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