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