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