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