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