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