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