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