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