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