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