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