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