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