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