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