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