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