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