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