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