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