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