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)(23,24)(25,29)(26,27)(28,32)(30,31)(33,36)(34,35)(5,7,10,11)(6,8,12,9)(14,18)(19,20)(22,27)(23,28)(29,35)(30,36)(5,8,10,9)(6,7,12,11)(13,14)(15,19)(16,20)(17,18)(21,23,26,28)(22,24,27,32)(25,30,34,36)(29,31,35,33)(1,2)(3,4)(5,6)(7,8)(9,11)(10,12)(13,15,17,16)(14,19,18,20)(21,24)(22,28)(23,27)(25,33)(26,32)(29,30)(31,34)(35,36)(5,9,10,8)(6,11,12,7)(13,16,17,15)(14,20,18,19)(21,25)(22,29)(23,30)(24,31)(26,34)(27,35)(28,36)(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.