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