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