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