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