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