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