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