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