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