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