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