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