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