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