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)(17,18,21,28,24,30,23,26)(19,31,34,45,37,44,35,25)(20,38,39,29,40,27,22,41)(32,43,36,46,48,42,33,47)(1,3,5,11)(2,6,8,9)(4,10,12,16)(7,13,14,15)(17,19)(18,25)(20,33)(21,35)(22,32)(23,34)(24,37)(26,31)(27,43)(28,44)(29,46)(30,45)(36,40)(38,42)(39,48)(41,47)(1,4,5,12)(2,7,8,14)(3,10,11,16)(6,13,9,15)(18,26)(19,32)(20,39)(21,23)(22,40)(25,42)(28,30)(29,41)(31,46)(33,34)(35,36)(37,48)(43,45)(44,47)(4,12)(7,14)(10,16)(13,15)(17,20,21,39,24,40,23,22)(18,27,28,41,30,38,26,29)(19,33,35,48,37,36,34,32)(25,43,44,47,45,42,31,46)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.