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