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