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