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