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