One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,9)(4,7)(5,8)(6,11)(10,15)(12,14)(13,16)(17,18,23,29)(19,24,30,43)(20,26,34,50)(21,25,39,49)(22,40,38,28)(27,53,48,37)(31,42,54,69)(32,46,55,41)(33,61,56,45)(35,47,62,72)(36,65,63,52)(44,59,70,60)(51,74,73,64)(57,71,75,66)(58,79,76,68)(67,77,80,78)(1,3)(2,6)(4,10)(5,11)(7,13)(8,9)(12,16)(14,15)(17,19)(18,24)(20,31)(21,32)(22,33)(23,30)(25,46)(26,42)(27,44)(28,45)(29,43)(34,54)(35,57)(36,58)(37,60)(38,56)(39,55)(40,61)(41,49)(47,71)(48,70)(50,69)(51,67)(52,68)(53,59)(62,75)(63,76)(64,78)(65,79)(66,72)(73,80)(74,77) involution — undirected(1,4,5,12)(2,7,8,14)(3,10,11,16)(6,13,9,15)(18,25)(19,30)(21,37)(22,38)(24,41)(26,47)(27,28)(29,49)(31,54)(32,59)(35,64)(36,63)(39,53)(40,48)(42,66)(43,46)(44,61)(45,70)(50,72)(51,52)(55,60)(57,77)(62,74)(65,73)(67,79)(68,80)(69,71)(75,78)(3,11)(6,9)(10,16)(13,15)(17,20)(18,26)(19,31)(21,35)(22,36)(23,34)(24,42)(25,47)(27,51)(28,52)(29,50)(30,54)(32,57)(33,58)(37,64)(38,63)(39,62)(40,65)(41,66)(43,69)(44,67)(45,68)(46,71)(48,73)(49,72)(53,74)(55,75)(56,76)(59,77)(60,78)(61,79)(70,80) involution — undirected(2,8)(6,9)(7,14)(13,15)(19,30)(20,34)(24,43)(26,50)(32,55)(33,56)(35,62)(36,63)(41,46)(44,70)(45,61)(47,72)(51,73)(52,65)(59,60)(64,74) 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.