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