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