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