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