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