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