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