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