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