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