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