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