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