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