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