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