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