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