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