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