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