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)(8,22,24,32,26,31,25,13)(18,27,23,30,35,36,34,33)(1,3,4,2)(5,7,10,20,11,21,9,19)(6,12,14,28,16,29,15,17)(8,23,25,18,26,34,24,35)(13,30,22,36,32,33,31,27)(2,3)(5,8,9,24,11,26,10,25)(6,13,15,31,16,32,14,22)(7,18,19,23,21,35,20,34)(12,27,17,33,29,36,28,30)(6,14,16,15)(12,28,29,17)(13,22,32,31)(27,30,36,33)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.