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