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