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