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