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