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