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