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