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