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