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