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