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