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