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