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