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