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