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