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