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