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