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