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