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