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