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