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