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