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