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