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