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