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