One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,3)(5,6,10,9,11,14,8,13)(7,15,16,12,18,19,17,20)(21,22)(23,29)(24,32)(25,27)(26,30)(28,34)(31,36)(33,35)(1,3,4,2)(5,7,11,18)(6,12,14,20)(8,16,10,17)(9,15,13,19)(5,8,11,10)(6,13,14,9)(7,16,18,17)(12,19,20,15)(21,23,25,31)(22,26,27,35)(24,33,34,30)(28,36,32,29)(5,9,10,14,11,13,8,6)(7,12,16,19,18,20,17,15)(22,27)(26,35)(28,32)(29,36)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.