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