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