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