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