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