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