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