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