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