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