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