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