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