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