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