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