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