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