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