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