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