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