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