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