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