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