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