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