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