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