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