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