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