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