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