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