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