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