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