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