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