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