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