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