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