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