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