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