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