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