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