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