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