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