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