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