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