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