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