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