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