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