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