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