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