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