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