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