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