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