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