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