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