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)(21,22,25,29)(23,27,31,26)(24,32,33,28)(30,34,36,35)(7,12)(8,11)(14,17)(18,20)(21,23,25,31)(22,26,29,27)(24,30,33,36)(28,34,32,35)(5,7,10,12)(6,11,9,8)(13,14,16,17)(15,18,19,20)(21,22)(23,26)(24,28)(25,29)(27,31)(30,34)(32,33)(35,36)(1,2,3,4)(5,8)(6,7)(9,12)(10,11)(21,23)(22,27)(24,30)(25,31)(26,29)(28,35)(32,34)(33,36)(5,9,10,6)(7,8,12,11)(13,15,16,19)(14,18,17,20)(21,24)(22,28)(23,30)(25,33)(26,34)(27,35)(29,32)(31,36)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.