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