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