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