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