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