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