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)(19,21)(20,24)(22,25)(23,27)(26,29)(28,32)(30,31)(33,34,39,41)(35,44,38,40)(36,42,46,48)(37,45,47,43)(1,3)(2,7)(4,12)(5,13)(6,11)(8,10)(9,16)(14,15)(17,19)(18,23)(20,26)(21,25)(22,27)(24,31)(28,30)(29,32)(33,35,39,38)(34,40,41,44)(36,43,46,45)(37,42,47,48)(3,11)(7,8)(12,16)(13,14)(20,28)(24,32)(26,30)(29,31)(34,41)(36,46)(40,44)(43,45) involution — undirected(1,3)(2,8)(4,12)(5,14)(6,11)(7,10)(9,16)(13,15)(17,20)(18,24)(19,26)(21,29)(22,28)(23,31)(25,32)(27,30)(33,36,39,46)(34,42,41,48)(35,45,38,43)(37,44,47,40)(1,4)(2,5)(3,12)(6,9)(7,13)(8,14)(10,15)(11,16)(17,21,22,23)(18,19,25,27)(20,29,28,31)(24,26,32,30)(33,37)(34,43)(35,42)(36,44)(38,48)(39,47)(40,46)(41,45)(1,5)(2,9)(3,13)(4,10)(6,15)(7,16)(8,12)(11,14)(17,19)(18,21)(20,30)(22,27)(23,25)(24,31)(26,28)(29,32)(33,38,39,35)(34,40,41,44)(36,45,46,43)(37,42,47,48)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.