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