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