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