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