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