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