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