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