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