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