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