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