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