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