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