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