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