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