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