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