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