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