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