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