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