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