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