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)(13,14,16,18)(15,17,19,20)(22,24)(23,29)(25,33)(34,36)(6,9)(10,11)(15,19)(17,20)(21,22,26,24)(23,27,29,31)(25,28,33,32)(30,34,35,36)(5,6,8,9)(7,10,12,11)(13,15,16,19)(14,17,18,20)(21,23)(22,27)(24,31)(25,30)(26,29)(28,34)(32,36)(33,35)(1,2)(3,4)(5,6)(7,11)(8,9)(10,12)(13,14)(15,17)(16,18)(19,20)(21,24,26,22)(23,27,29,31)(25,28,33,32)(30,36,35,34)(5,7,8,12)(6,10,9,11)(21,25,26,33)(22,28,24,32)(23,30,29,35)(27,34,31,36)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.