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