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