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