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