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