One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,5)(4,12)(6,7)(8,10)(9,14)(11,15)(13,16)(17,18)(19,22)(20,24)(21,25)(23,27)(26,31)(28,30)(29,32)(34,36)(35,41)(40,44)(43,45) involution — undirected(2,7)(3,10)(9,12)(11,16)(17,19)(18,22)(20,26)(21,27)(23,25)(24,31)(28,32)(29,30)(33,34,38,36)(35,42,41,39)(37,40,46,44)(43,48,45,47)(1,3)(2,8)(4,11)(5,7)(6,10)(9,15)(12,13)(14,16)(17,18,21,25)(19,23,27,22)(20,24,30,28)(26,32,29,31)(33,34,38,36)(35,42,41,39)(37,40,46,44)(43,48,45,47)(1,3)(2,8)(4,11)(5,7)(6,10)(9,15)(12,13)(14,16)(17,18)(19,23)(20,28)(21,25)(22,27)(24,30)(26,31)(29,32)(33,35,38,41)(34,39,36,42)(37,45,46,43)(40,48,44,47)(1,4,6,14)(2,9,7,12)(3,11,10,16)(5,13,8,15)(17,19)(18,23)(20,29)(21,27)(22,25)(24,31)(26,30)(28,32)(33,36,38,34)(35,42,41,39)(37,40,46,44)(43,47,45,48)(1,5,6,8)(2,3,7,10)(4,13,14,15)(9,11,12,16)(17,20,21,30)(18,24,25,28)(19,26,27,29)(22,31,23,32)(33,37,38,46)(34,40,36,44)(35,43,41,45)(39,47,42,48)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.