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