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