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