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