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