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