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