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