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