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