One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(9,10,18,26)(11,27,33,62)(12,34,30,57)(13,22,35,23)(14,21,15,43)(16,46,40,72)(17,49,48,25)(19,44,55,29)(20,36,58,31)(24,64,59,28)(32,69,50,66)(37,54,67,65)(38,53,68,70)(39,63,41,61)(42,60,45,56)(47,51,71,52)(5,6)(7,8)(9,11,18,33)(10,19,26,55)(12,35,30,13)(14,29,15,44)(16,47,40,71)(17,50,48,32)(20,56,58,60)(21,51,43,52)(22,27,23,62)(24,34,59,57)(25,65,49,54)(28,31,64,36)(37,45,67,42)(38,39,68,41)(46,53,72,70)(61,69,63,66)(2,4)(6,8)(9,12,13,11,28,29,42,47,17,38,39,32,40,67,15,36,18,30,35,33,64,44,45,71,48,68,41,50,16,37,14,31)(10,20,21,54,46,66,61,70,25,52,56,55,59,62,23,57,26,58,43,65,72,69,63,53,49,51,60,19,24,27,22,34)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.