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