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