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