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