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