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