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