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