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