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