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