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