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