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