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