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