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