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