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