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)(11,13,16,15)(17,18,23,24)(19,22,21,20)(25,26)(27,30)(28,32)(29,31)(1,3,6,4)(2,7,8,5)(9,10)(11,15)(12,14)(13,16)(17,19,23,21)(18,20,24,22)(25,27,29,32)(26,30,31,28)(2,8)(3,4)(9,10,12,14)(11,13,16,15)(17,20,23,22)(18,19,24,21)(25,28)(26,27)(29,30)(31,32)(1,4,6,3)(2,5,8,7)(9,10)(11,13)(12,14)(15,16)(17,21,23,19)(18,20,24,22)(25,26)(27,30)(28,32)(29,31)(1,5)(2,3)(4,8)(6,7)(9,11,12,16)(10,13,14,15)(17,22,23,20)(18,19,24,21)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.