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