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