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