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