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