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