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