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