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