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