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