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