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