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