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