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