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)(17,18)(19,27)(20,31)(21,34)(22,26)(23,29)(24,33)(25,35)(28,41)(30,39)(32,45)(36,44)(37,42)(38,46)(40,43)(47,48)(17,19,21,29,22,30,35,44)(18,23,25,27,26,36,34,39)(20,28,33,43,32,42,46,48)(24,37,31,40,38,41,45,47)(1,3,5,10)(2,6,8,15)(4,13,14,11)(7,16,12,9)(20,32)(23,36)(24,38)(27,39)(28,42)(31,45)(33,46)(43,48)(3,10)(6,15)(9,16)(11,13)(17,20,21,33,22,32,35,46)(18,24,25,31,26,38,34,45)(19,28,29,43,30,42,44,48)(23,37,27,40,36,41,39,47)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.