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