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