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