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)(35,42)(36,39)(37,44)(38,40)(41,46)(43,47)(45,48)(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)(33,35,39,38)(34,40,36,42)(37,43,46,45)(41,47,44,48)(3,12)(4,13)(8,15)(9,14)(20,29)(23,28)(27,32)(30,31)(33,34,39,36)(35,42,38,40)(37,41,46,44)(43,48,45,47)(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)(33,36,39,34)(35,40,38,42)(37,44,46,41)(43,47,45,48)(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)(33,37)(34,41)(35,43)(36,44)(38,45)(39,46)(40,47)(42,48) 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)(33,38,39,35)(34,40,36,42)(37,45,46,43)(41,47,44,48)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.