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