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