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