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