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