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