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