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