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