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